Oxygen:
-The most common element in the earth's crust.
-Makes up 20% of the air we breathe.
-An essential element for combustion.
-At room temperature, oxygen is a colorless, odorless and tasteless gas. Liquid oxygen is slightly blue. Newly discovered solid oxygen is red.
-Oxygen can form compounds with almost every known element, except some of the Noble gases.
-There are four known allotropes of oxygen: the regular oxygen we breathe (O2), and ozone (O3). Other less common allotropes are tetraoxyen (O4), and solid oxygen (O8).
Sulfur:
-Pure sulfur is odorless and has a yellow color. However, sulfur compounds usually have an odor similar to rotten eggs.
-There are three known allotropes of sulfur: two crystalline and one amorphous. The amorphous usually changes back into one of the other two.
-In the 12th century, the Chinese mixed potassium nitrate, carbon, and sulfur to make gun powder.
Selenium:
-Gray solid.
-Discovered in 1817 by Jöns Jacob Berzelius.
-There are three known allotropes of selenium.
-Selenium is usually recovered in the red allotrope.
-Most selenium is obtained as a byproduct of refining copper.
-It is used in rubber compounding, steel alloying, and Selenium rectifiers. Its most common uses are photoconducters (such as in copy machines), glass manufacturing, and chemicals and pigments.
-It is toxic in large amounts, but is a trace element in most organisms.
-Selenium is a semi-conductor, and is sensitive to light.
-In the 1990s, selenium was starting to be used with bismuth in plumbing to meet no-lead standards.
-Studies show that selenium supplements may be related to cancer prevention.
Tellurium:
-Discovered in 1782 by Franz-Joseph Muller von Reichenstein.
-A silvery-white brittle metalloid.
-Tellurium is relatively rare.
-It was used in the shell of the first atomic bomb. It is also a basic ingredient in blasting caps.
-Can be alloyed with other metals to increase machinability (how well a material can be cut). It is also used in alloys as a semi-conductor.
-Tellurium is usually obtained from gold ores.
Polonium:
-Discovered by Marie Sklodowska-Curie (famous for discovery radioactivity), who named it after her homeland of Poland. She thought that by doing this, it would tell people how much Poland lacked independence, because it was controlled by Russia, Prussia, and Austria at the time. It was the first element named to show political controversy.
-A silvery metal that is very rare in nature.
-Polonium is radioactive.
-It is used in anti-static brushes for dusting negatives in prints. It can be purchased at photography stores.
The oxygen family
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(^_^)
(") (")
Stevie Z and Sam Marlinga ^_^
1) What period and group are your elements in?
Our elements are in group 16, periods two to six.
2) LIst the elements in your group.
The elements in our group are oxygen, sulfur, selenium, tellurium, polonium.
3) Is your group a solid, liquid or a gas?
Our group is solid, except for oxygen, which is a gas.
4) What are three physical properties of your group?
Oxygen is a gaseous nonmetal; sulfur and selenium are solid nonmetals; tellurium is a solid metalloid; and polonium is a solid metal.
5) What are three chemical properties of you group?
Our group is flammable, they gain or share two electron when reacting with other elements, and they are oxidizers.
6) What are 3 interesting facts about your group?
Selenium, tellurium, and polonium are metalloid semi-conductors. Trace amounts of selenium are essential for cellular functions in most animals. Polonium, and all of its 33 known isotopes, are radioactive.
7) What are 2 common uses for you group?
Sulfur is commonly used in rubber to create chemical bonds that make the rubber more flexible and durable. Oxygen gas is used when the gas is not present, in scuba tanks, climbing gear, and emergency rooms.
Padilla, Michael J., Ioannis Miaoulis, Martha Cyr, David V. Frank, Beth Miaoulis, Camille Wainwright, T. Griffiith Jones, Steve Miller, John G. Little, Jay M. Pasachoff, Linda Blaine, Edward Evans, Thomas R. Wellnitz, Rose-Marie Botting, Mark Illingworth, Mary Sue Burns, Thomas L. Messer, and William Tate. Prenctice Hallf: Physical Science. Comp. Nancy Romance. Pearson Education. Print.
Oxygen Family
Need it to breathe it.
Oxygen:
-The most common element in the earth's crust.
-Makes up 20% of the air we breathe.
-An essential element for combustion.
-At room temperature, oxygen is a colorless, odorless and tasteless gas. Liquid oxygen is slightly blue. Newly discovered solid oxygen is red.
-Oxygen can form compounds with almost every known element, except some of the Noble gases.
-There are four known allotropes of oxygen: the regular oxygen we breathe (O2), and ozone (O3). Other less common allotropes are tetraoxyen (O4), and solid oxygen (O8).
Sulfur:-Pure sulfur is odorless and has a yellow color. However, sulfur compounds usually have an odor similar to rotten eggs.
-There are three known allotropes of sulfur: two crystalline and one amorphous. The amorphous usually changes back into one of the other two.
-In the 12th century, the Chinese mixed potassium nitrate, carbon, and sulfur to make gun powder.
Selenium:
-Gray solid.
-Discovered in 1817 by Jöns Jacob Berzelius.
-There are three known allotropes of selenium.
-Selenium is usually recovered in the red allotrope.
-Most selenium is obtained as a byproduct of refining copper.
-It is used in rubber compounding, steel alloying, and Selenium rectifiers. Its most common uses are photoconducters (such as in copy machines), glass manufacturing, and chemicals and pigments.
-It is toxic in large amounts, but is a trace element in most organisms.
-Selenium is a semi-conductor, and is sensitive to light.
-In the 1990s, selenium was starting to be used with bismuth in plumbing to meet no-lead standards.
-Studies show that selenium supplements may be related to cancer prevention.
Tellurium:
-Discovered in 1782 by Franz-Joseph Muller von Reichenstein.
-A silvery-white brittle metalloid.
-Tellurium is relatively rare.
-It was used in the shell of the first atomic bomb. It is also a basic ingredient in blasting caps.
-Can be alloyed with other metals to increase machinability (how well a material can be cut). It is also used in alloys as a semi-conductor.
-Tellurium is usually obtained from gold ores.
Polonium:
-Discovered by Marie Sklodowska-Curie (famous for discovery radioactivity), who named it after her homeland of Poland. She thought that by doing this, it would tell people how much Poland lacked independence, because it was controlled by Russia, Prussia, and Austria at the time. It was the first element named to show political controversy.
-A silvery metal that is very rare in nature.
-Polonium is radioactive.
-It is used in anti-static brushes for dusting negatives in prints. It can be purchased at photography stores.
(\_/)
(^_^)
(") (")
Stevie Z and Sam Marlinga ^_^
1) What period and group are your elements in?
Our elements are in group 16, periods two to six.
2) LIst the elements in your group.
The elements in our group are oxygen, sulfur, selenium, tellurium, polonium.
3) Is your group a solid, liquid or a gas?
Our group is solid, except for oxygen, which is a gas.
4) What are three physical properties of your group?
Oxygen is a gaseous nonmetal; sulfur and selenium are solid nonmetals; tellurium is a solid metalloid; and polonium is a solid metal.
5) What are three chemical properties of you group?
Our group is flammable, they gain or share two electron when reacting with other elements, and they are oxidizers.
6) What are 3 interesting facts about your group?
Selenium, tellurium, and polonium are metalloid semi-conductors. Trace amounts of selenium are essential for cellular functions in most animals. Polonium, and all of its 33 known isotopes, are radioactive.
7) What are 2 common uses for you group?
Sulfur is commonly used in rubber to create chemical bonds that make the rubber more flexible and durable. Oxygen gas is used when the gas is not present, in scuba tanks, climbing gear, and emergency rooms.
Sources:
Doodledoo. Sulfur. 2007. Photograph. Wikipedia. Wikipedia. 2007. Web. 22 Oct. 2009. <http://en.wikipedia.org/wiki/File:Sulfur.jpg>.
Dschwen. Tellurium. 2006. Photograph. Wikipedia. Wikipedia. 5 Jan. 2006. Web. 22 Oct. 2009. <http://en.wikipedia.org/wiki/File:Tellurium_crystal.jpg>.
Gray, Theodore. Polonium. 2007. Photograph. Periodic Table. Periodic Table. 4 May 2007. Web. 22 Oct. 2009. <http://images.google.com/imgres?imgurl=http:periodictable.com/Samples/084.8/s9s.JPG&imgrefurl=http://www.periodictable.com/Elements/084/index.html&usg=xfGWjVskxuZDIBzmHe3Y51R-dyQ=&h=356&w=356&sz=12&hl=en&start=11&um=1&tbnid=t9hO8FFpIamI6M:&tbnh=121&tbnw=121&prev=/images%3Fq%3Dpolonium%26hl%3Den%26safe%3Dstrict%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26sa%3DN%26um%3D1>.
Oxygen Family. Digital image. Learner. Web. 26 Oct. 2009. <http://www.learner.org/interactives/periodic/groups6.html>.
"Oxygen Family." Encyclopedia of Science. 2nd Ed. Ed. Rob Nagel. UXL-Thomson Gale, 2002. eNotes.com. 2006. 23 Oct, 2009 <http://www.enotes.com/uxl-science-encyclopedia/
oxygen-family>
"The Oxygen Family." The Third Millennium Online! Web. 23 Oct. 2009. <http://www.3rd1000.com/elements/oxyfam.htm>.
Padilla, Michael J., Ioannis Miaoulis, Martha Cyr, David V. Frank, Beth Miaoulis, Camille Wainwright, T. Griffiith Jones, Steve Miller, John G. Little, Jay M. Pasachoff, Linda Blaine, Edward Evans, Thomas R. Wellnitz, Rose-Marie Botting, Mark Illingworth, Mary Sue Burns, Thomas L. Messer, and William Tate. Prenctice Hallf: Physical Science. Comp. Nancy Romance. Pearson Education. Print.
Selenium . Photograph. Emporia. Http:www.mineral.galleries.com/minerals/elements/selenium/selenium.jpg. Web. 22 Oct. 2009.
Zhang, Shuhong. "About the Oxygen Family." Personal interview. 23 Oct. 2009.